Cambodia's Prime Minister Hun Sen gestures as he arrives for a family photo with other ASEM leaders outside Ulaanbaatar. Photo: Reuters/Damir Sagolj

Cambodia’s Prime Minister Hun Sen gestures as he arrives for a family photo with other leaders during the Asia-Europe Meeting (ASEM) summit just outside Ulaanbaatar, Mongolia, July 16, 2016. REUTERS/Damir Sagolj